Description
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Optical Set For Ray Track Apparatus
Description
Comprises a white painted wooden board mounted on nonskid plastic feet, and a removable turntable about 170 mm in diameter.
Two orthogonal lines along the turntables diameter divide it into four equal quadrants Just beyond the rim of the turntable, a circular scale graduated 90 – 0 – 90 – 0 – 90 °, with 1° subdivision, Also includes a ray box with a 12 V, 24 W bulb Supplied complete with a cylindrical convex lens with focal length approx. 75 mm and two double slits, giving one wide beam slit and one each of single, triple and five slits An optical set is available separately, comprising of one each of rectangular, semi-circular, right-angled triangular – 90 ° 45 ° 45° trapezoidal, biconvex and biconcave prisms.
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Description
These are collapsible pocket magnifiers. The optical system is a single element, glass Double Convex Lens. The housing is made of machined, black high grade plastic for a high finish look. These magnifiers fold flat to fit in your pocket. Scales are etched on the inner faces of the viewers base.
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